2991000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{997}}^1$

素因数の和:1021

約数の個数: 64

約数和(自身を含む): 9341280

約数和(自身を除く): 6350280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 997, 1000, 1500, 1994, 2991, 3000, 3988, 4985, 5982, 7976, 9970, 11964, 14955, 19940, 23928, 24925, 29910, 39880, 49850, 59820, 74775, 99700, 119640, 124625, 149550, 199400, 249250, 299100, 373875, 498500, 598200, 747750, 997000, 1495500, 2991000]

約数ペア:

[(1, 2991000), (2, 1495500), (3, 997000), (4, 747750), (5, 598200), (6, 498500), (8, 373875), (10, 299100), (12, 249250), (15, 199400), (20, 149550), (24, 124625), (25, 119640), (30, 99700), (40, 74775), (50, 59820), (60, 49850), (75, 39880), (100, 29910), (120, 24925), (125, 23928), (150, 19940), (200, 14955), (250, 11964), (300, 9970), (375, 7976), (500, 5982), (600, 4985), (750, 3988), (997, 3000), (1000, 2991), (1500, 1994)]